1 # 2 # Copyright (c) 2013, 2020, Oracle and/or its affiliates. All rights reserved. 3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 # 5 # This code is free software; you can redistribute it and/or modify it 6 # under the terms of the GNU General Public License version 2 only, as 7 # published by the Free Software Foundation. Oracle designates this 8 # particular file as subject to the "Classpath" exception as provided 9 # by Oracle in the LICENSE file that accompanied this code. 10 # 11 # This code is distributed in the hope that it will be useful, but WITHOUT 12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 # version 2 for more details (a copy is included in the LICENSE file that 15 # accompanied this code). 16 # 17 # You should have received a copy of the GNU General Public License version 18 # 2 along with this work; if not, write to the Free Software Foundation, 19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 # 21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 # or visit www.oracle.com if you need additional information or have any 23 # questions. 24 # 25 26 # Include support files that will setup compiler flags due to the selected 27 # jvm feature set, specific file overrides, and general flags. 28 include lib/JvmFeatures.gmk 29 include lib/JvmOverrideFiles.gmk 30 include lib/JvmFlags.gmk 31 32 # Include support files that will setup DTRACE_EXTRA_OBJECT_FILES. 33 include lib/JvmDtraceObjects.gmk 34 35 ################################################################################ 36 # Setup compilation of the main Hotspot native library (libjvm). 37 38 JVM_OUTPUTDIR := $(JVM_VARIANT_OUTPUTDIR)/libjvm 39 JVM_MAPFILE := $(JVM_OUTPUTDIR)/mapfile 40 41 ################################################################################ 42 # Platform independent setup 43 44 JVM_LDFLAGS += \ 45 $(SHARED_LIBRARY_FLAGS) \ 46 $(JVM_LDFLAGS_FEATURES) \ 47 $(EXTRA_LDFLAGS) \ 48 # 49 50 JVM_ASFLAGS += $(EXTRA_ASFLAGS) 51 52 JVM_LIBS += \ 53 $(JVM_LIBS_FEATURES) \ 54 # 55 56 # These files and directories are always excluded 57 JVM_EXCLUDE_FILES += args.cc 58 JVM_EXCLUDES += adlc 59 60 # Needed by abstract_vm_version.cpp 61 ifeq ($(call isTargetCpu, x86_64), true) 62 OPENJDK_TARGET_CPU_VM_VERSION := amd64 63 else ifeq ($(call isTargetCpu, sparcv9), true) 64 OPENJDK_TARGET_CPU_VM_VERSION := sparc 65 else 66 OPENJDK_TARGET_CPU_VM_VERSION := $(OPENJDK_TARGET_CPU) 67 endif 68 69 CFLAGS_VM_VERSION := \ 70 $(VERSION_CFLAGS) \ 71 -DHOTSPOT_VERSION_STRING='"$(VERSION_STRING)"' \ 72 -DDEBUG_LEVEL='"$(DEBUG_LEVEL)"' \ 73 -DHOTSPOT_BUILD_USER='"$(USERNAME)"' \ 74 -DHOTSPOT_VM_DISTRO='"$(HOTSPOT_VM_DISTRO)"' \ 75 -DCPU='"$(OPENJDK_TARGET_CPU_VM_VERSION)"' \ 76 # 77 78 ifneq ($(HOTSPOT_BUILD_TIME), ) 79 CFLAGS_VM_VERSION += -DHOTSPOT_BUILD_TIME='"$(HOTSPOT_BUILD_TIME)"' 80 endif 81 82 ################################################################################ 83 # Disabled warnings 84 85 DISABLED_WARNINGS_gcc := parentheses comment unknown-pragmas address \ 86 delete-non-virtual-dtor char-subscripts array-bounds int-in-bool-context \ 87 ignored-qualifiers missing-field-initializers implicit-fallthrough \ 88 empty-body strict-overflow sequence-point maybe-uninitialized \ 89 misleading-indentation cast-function-type 90 91 ifeq ($(call check-jvm-feature, zero), true) 92 DISABLED_WARNINGS_gcc += return-type switch clobbered 93 endif 94 95 DISABLED_WARNINGS_clang := tautological-compare \ 96 undefined-var-template sometimes-uninitialized unknown-pragmas \ 97 delete-non-virtual-dtor missing-braces char-subscripts \ 98 ignored-qualifiers missing-field-initializers mismatched-tags 99 100 DISABLED_WARNINGS_solstudio := labelnotused hidef w_novirtualdescr inlafteruse \ 101 unknownpragma doubunder w_enumnotused w_toomanyenumnotused \ 102 wvarhidenmem wunreachable wnoretvalue notemsource 103 104 DISABLED_WARNINGS_xlc := tautological-compare shift-negative-value 105 106 DISABLED_WARNINGS_microsoft := 107 108 109 110 ################################################################################ 111 # Platform specific setup 112 113 # ARM source selection 114 115 ifeq ($(call And, $(call isTargetOs, linux) $(call isTargetCpu, arm)), true) 116 JVM_EXCLUDE_PATTERNS += arm_64 117 118 else ifeq ($(call And, $(call isTargetOs, linux) $(call isTargetCpu, aarch64)), true) 119 # For 64-bit arm builds, we use the 64 bit hotspot/src/cpu/arm 120 # hotspot sources if HOTSPOT_TARGET_CPU_ARCH is set to arm. 121 # Exclude the aarch64 and 32 bit arm files for this build. 122 ifeq ($(HOTSPOT_TARGET_CPU_ARCH), arm) 123 JVM_EXCLUDE_PATTERNS += arm_32 aarch64 124 endif 125 endif 126 127 ifeq ($(call isTargetOs, linux macosx windows), true) 128 JVM_PRECOMPILED_HEADER := $(TOPDIR)/src/hotspot/share/precompiled/precompiled.hpp 129 endif 130 131 ifeq ($(call isTargetCpu, x86), true) 132 JVM_EXCLUDE_PATTERNS += x86_64 133 else ifeq ($(call isTargetCpu, x86_64), true) 134 JVM_EXCLUDE_PATTERNS += x86_32 135 endif 136 137 # Inline assembly for solaris 138 ifeq ($(call isTargetOs, solaris), true) 139 ifeq ($(call isTargetCpu, x86_64), true) 140 JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_x86/solaris_x86_64.il 141 else ifeq ($(call isTargetCpu, sparcv9), true) 142 JVM_CFLAGS += $(TOPDIR)/src/hotspot/os_cpu/solaris_sparc/solaris_sparc.il 143 endif 144 # Exclude warnings in devstudio 12.6 145 ifeq ($(CC_VERSION_NUMBER), 5.15) 146 DISABLED_WARNINGS_solstudio += SEC_ARR_OUTSIDE_BOUND_READ \ 147 SEC_ARR_OUTSIDE_BOUND_WRITE 148 endif 149 endif 150 151 ifeq ($(call And, $(call isTargetOs, solaris) $(call isTargetCpu, sparcv9)), true) 152 ifeq ($(COMPILE_WITH_DEBUG_SYMBOLS), false) 153 # NOTE: In the old build, we weirdly enough set -g/-g0 always, regardless 154 # of if debug symbols were needed. Without it, compilation fails on 155 # sparc! :-( 156 JVM_CFLAGS += -g0 157 endif 158 endif 159 160 ifeq ($(call isTargetOs, windows), true) 161 ifeq ($(call isTargetCpuBits, 64), true) 162 RC_DESC := 64-Bit$(SPACE) 163 endif 164 JVM_RCFLAGS += -D"HS_FILEDESC=$(HOTSPOT_VM_DISTRO) $(RC_DESC)$(JVM_VARIANT) VM" 165 endif 166 167 JVM_OPTIMIZATION ?= HIGHEST_JVM 168 169 # Need to set JVM_STRIPFLAGS to the default value from SPEC since the STRIPFLAGS 170 # parameter to SetupNativeCompilation allows an empty value to override the 171 # default. 172 JVM_STRIPFLAGS ?= $(STRIPFLAGS) 173 174 # This source set is reused so save in cache. 175 $(call FillFindCache, $(JVM_SRC_DIRS)) 176 177 ################################################################################ 178 # Now set up the actual compilation of the main hotspot native library 179 180 $(eval $(call SetupNativeCompilation, BUILD_LIBJVM, \ 181 NAME := jvm, \ 182 TOOLCHAIN := TOOLCHAIN_LINK_CXX, \ 183 OUTPUT_DIR := $(JVM_LIB_OUTPUTDIR), \ 184 SRC := $(JVM_SRC_DIRS), \ 185 EXCLUDES := $(JVM_EXCLUDES), \ 186 EXCLUDE_FILES := $(JVM_EXCLUDE_FILES), \ 187 EXCLUDE_PATTERNS := $(JVM_EXCLUDE_PATTERNS), \ 188 EXTRA_OBJECT_FILES := $(DTRACE_EXTRA_OBJECT_FILES), \ 189 CFLAGS := $(JVM_CFLAGS), \ 190 abstract_vm_version.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \ 191 arguments.cpp_CXXFLAGS := $(CFLAGS_VM_VERSION), \ 192 DISABLED_WARNINGS_gcc := $(DISABLED_WARNINGS_gcc), \ 193 DISABLED_WARNINGS_clang := $(DISABLED_WARNINGS_clang), \ 194 DISABLED_WARNINGS_solstudio := $(DISABLED_WARNINGS_solstudio), \ 195 DISABLED_WARNINGS_xlc := $(DISABLED_WARNINGS_xlc), \ 196 DISABLED_WARNINGS_microsoft := $(DISABLED_WARNINGS_microsoft), \ 197 ASFLAGS := $(JVM_ASFLAGS), \ 198 LDFLAGS := $(JVM_LDFLAGS), \ 199 LIBS := $(JVM_LIBS), \ 200 OPTIMIZATION := $(JVM_OPTIMIZATION), \ 201 OBJECT_DIR := $(JVM_OUTPUTDIR)/objs, \ 202 MAPFILE := $(JVM_MAPFILE), \ 203 USE_MAPFILE_FOR_SYMBOLS := true, \ 204 STRIPFLAGS := $(JVM_STRIPFLAGS), \ 205 EMBED_MANIFEST := true, \ 206 RC_FLAGS := $(JVM_RCFLAGS), \ 207 VERSIONINFO_RESOURCE := $(TOPDIR)/src/hotspot/os/windows/version.rc, \ 208 PRECOMPILED_HEADER := $(JVM_PRECOMPILED_HEADER), \ 209 PRECOMPILED_HEADER_EXCLUDE := $(JVM_PRECOMPILED_HEADER_EXCLUDE), \ 210 )) 211 212 # Always recompile abstract_vm_version.cpp if libjvm needs to be relinked. This ensures 213 # that the internal vm version is updated as it relies on __DATE__ and __TIME__ 214 # macros. 215 ABSTRACT_VM_VERSION_OBJ := $(JVM_OUTPUTDIR)/objs/abstract_vm_version$(OBJ_SUFFIX) 216 $(ABSTRACT_VM_VERSION_OBJ): $(filter-out $(ABSTRACT_VM_VERSION_OBJ) $(JVM_MAPFILE), \ 217 $(BUILD_LIBJVM_TARGET_DEPS)) 218 219 ifneq ($(GENERATE_COMPILE_COMMANDS_ONLY), true) 220 ifeq ($(call isTargetOs, windows), true) 221 # It doesn't matter which jvm.lib file gets exported, but we need 222 # to pick just one. 223 ifeq ($(JVM_VARIANT), $(JVM_VARIANT_MAIN)) 224 $(eval $(call SetupCopyFiles, COPY_JVM_LIB, \ 225 DEST := $(LIB_OUTPUTDIR), \ 226 FILES :=$(BUILD_LIBJVM_IMPORT_LIBRARY), \ 227 )) 228 TARGETS += $(COPY_JVM_LIB) 229 endif 230 endif 231 endif 232 233 # AIX warning explanation: 234 # 1500-010 : (W) WARNING in ...: Infinite loop. Program may not stop. 235 # There are several infinite loops in the vm, so better suppress. 236 # 1540-0198 : (W) The omitted keyword "private" is assumed for base class "...". 237 # 1540-0216 : (W) An expression of type .. cannot be converted to type .. 238 # In hotspot this fires for functionpointer to pointer conversions 239 # 1540-1088 : (W) The exception specification is being ignored. 240 # In hotspot this is caused by throw() in declaration of new() in nmethod.hpp. 241 # 1540-1090 : (I) The destructor of "..." might not be called. 242 # 1540-1639 : (I) The behavior of long type bit fields has changed ... 243 244 # Include mapfile generation. It relies on BUILD_LIBJVM_ALL_OBJS which is only 245 # defined after the above call to BUILD_LIBJVM. Mapfile will be generated 246 # after all object files are built, but before the jvm library is linked. 247 include lib/JvmMapfile.gmk 248 249 TARGETS += $(BUILD_LIBJVM) 250 251 ################################################################################ 252 # Hotspot disallows the use of global operators 'new' and 'delete'. This build 253 # time check helps enforce this requirement. If you trigger this check and the 254 # reference is not obvious from the source, GNU objdump can be used to help find 255 # the reference if compiled with GCC: 256 # 257 # objdump -lrdSC <path/to/file.o> 258 # 259 # -C demangle 260 # -d disassemble 261 # -r print relocation entries, interspersed with the disassembly 262 # -S print source code, intermixed with disassembly 263 # -l include filenames and line numbers 264 # 265 # Search the output for the operator(s) of interest, to see where they are 266 # referenced. 267 # 268 # When a reference to the global 'operator delete' is reported, it might be 269 # due to a "deleting destructor". In this case, objdump may show the 270 # reference to be associated with but not actually in a destructor. A 271 # deleting destructor is automatically generated for a class whose destructor 272 # is virtual. A deleting destructor requires an accessible 'operator delete' 273 # for the associated class. If the class doesn't provide a more specific 274 # declaration (either directly or by inheriting from a class that provides 275 # one) then the global definition will be used, triggering this check. 276 277 ifneq ($(GENERATE_COMPILE_COMMANDS_ONLY), true) 278 ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang solstudio), ) 279 280 DEMANGLED_REGEXP := [^:]operator (new|delete) 281 282 # Running c++filt to find offending symbols in all files is too expensive, 283 # especially on Solaris, so use mangled names when looking for symbols. 284 # Save the demangling for when something is actually found. 285 ifeq ($(TOOLCHAIN_TYPE), solstudio) 286 MANGLED_SYMS := \ 287 __1c2n6FL_pv_ \ 288 __1c2N6FL_pv_ \ 289 __1c2k6Fpv_v_ \ 290 __1c2K6Fpv_v_ \ 291 # 292 UNDEF_PATTERN := UNDEF 293 else 294 MANGLED_SYMS := \ 295 _ZdaPv \ 296 _ZdlPv \ 297 _Znam \ 298 _Znwm \ 299 # 300 UNDEF_PATTERN := ' U ' 301 endif 302 303 define SetupOperatorNewDeleteCheck 304 $1.op_check: $1 305 if [ -n "`$(NM) $$< | $(GREP) $(addprefix -e , $(MANGLED_SYMS)) \ 306 | $(GREP) $(UNDEF_PATTERN)`" ]; then \ 307 $(ECHO) "$$<: Error: Use of global operators new and delete is not allowed in Hotspot:"; \ 308 $(NM) $$< | $(CXXFILT) | $(EGREP) '$(DEMANGLED_REGEXP)' | $(GREP) $(UNDEF_PATTERN); \ 309 $(ECHO) "See: $(TOPDIR)/make/hotspot/lib/CompileJvm.gmk"; \ 310 exit 1; \ 311 fi 312 $(TOUCH) $$@ 313 314 TARGETS += $1.op_check 315 endef 316 317 $(foreach o, $(BUILD_LIBJVM_ALL_OBJS), $(eval $(call SetupOperatorNewDeleteCheck,$o))) 318 endif 319 endif